This 2012 Apple MacBook Pro Retina 13.3" notebook offers high - performance computing. It features a precision aluminum unibody enclosure. Powered by an Intel Core i5 - 3210M Dual - Core 2.5GHz CPU with a max turbo frequency of 3.1 GHz and 3 MB Intel Smart Cache, it ensures smooth operation. The 4GB DDR3 SDRAM and 128GB SSD hard drive provide sufficient storage and fast data access. It comes with Mac OS X 2019 (Catalina) and can be downgraded to older versions like Sierra, El Capitan, and Yosemite upon request. The Intel HD Graphics 4000 delivers good graphics performance. There are integrated stereo speakers and an omnidirectional microphone for multimedia. It has AirPort Extreme wireless LAN and Bluetooth 4.0 for wireless connectivity. The 13.3 - inch Retina LED - backlit glossy widescreen display (2560 x 1600) offers sharp visuals. The I/O ports include two Thunderbolt ports, two USB 3.0 ports, one HDMI, and one audio input mini - jack. Input power is AC 1.5A 100 - 240V ~ 50/60Hz, with an output of 16.5V - 3.65A. It measures approximately 0.75 x 12.35 x 8.62 inches and weighs 3.5 lbs. It has FCC, CE, C - Tick, and VCCI regulatory approvals. The package includes the notebook and a power adapter. It requires a power outlet to operate.
Using your Apple MacBook Pro Retina is easy. First, plug the power adapter into a power outlet and then connect it to the laptop. Press the power button to turn it on. You can then start using the Mac OS X system. To connect to the internet, use the AirPort Extreme wireless LAN or Bluetooth 4.0 to pair with other devices. When using the display, adjust the brightness according to your environment. For audio, you can use the built - in speakers or connect external headphones through the audio input port. When it comes to maintenance, keep the laptop clean by using a soft, dry cloth to wipe the screen and the body. Avoid using abrasive materials. Make sure to store the laptop in a cool, dry place. If you need to downgrade the operating system, contact the seller as they can assist you with downgrading to Sierra, El Capitan, Yosemite, or older versions. Also, be careful when handling the power adapter and don't overload the power outlet.
